Mikael
Could it be pre-wired for power seats? According to the supplement deauville parts manual it was a system with 3 motors. The total adds up to 8 wires, 2 for each motor and 2 for the power supply.
Got the same wires under the passengerside carpet as well?
maybe Wellis can help since he has a later model which probably has the actual Maserati quattroporte 3 powerseats.
As for the starting in any gear. It would be most likely that there is a wiring problem under the gearshift. I have no personal experience in looking for bad wiring in thatt area so I can't help you out with tips.
The wiring should be basic ford wiring and hook up. Maybe the guys from www.c6-c4.com can help with the wiring and other tranny problems. They have some interesting stuff anyway to check out.
Best regards,
Chiel
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